An overhead line grounding wire hanging and detaching device and hanging method

Abstract

The present application relates to the technical field of power transmission line maintenance, and in particular to an overhead line grounding wire hanging and detaching device and a hanging method. The overhead line grounding wire hanging and detaching device comprises: a connecting seat, which can be connected with a drone main body; a middle clamping mechanism, which is installed on the connecting seat and can clamp a middle power transmission conductor; a lateral clamping mechanism, which is installed on the connecting seat and can rotate up and down relative to the connecting seat, is adapted with a lateral conductor clamping mechanism, and the lateral conductor clamping mechanism can clamp a lateral power transmission conductor; and a grounding wire clamping mechanism, which is installed on the connecting seat, can clamp a grounding conductor, is in conductive connection with the middle clamping mechanism, and can synchronously complete three-phase grounding hanging, thereby improving the power transmission line maintenance operation efficiency. The overhead line grounding wire hanging method is based on the aforementioned overhead line grounding wire hanging and detaching device.

Description

Technical Field

[0001] This invention relates to the field of power transmission line maintenance technology, specifically to a device for hanging and removing grounding wires for overhead lines and a hanging method thereof. Background Technology

[0002] Before power outage maintenance of transmission lines, grounding wires must be reliably installed on the section of line to be maintained to prevent injuries from induced current and electric shock accidents from accidental energization. The reliability and convenience of grounding wire installation directly determine the safety level and work efficiency of the maintenance operation. Currently, the installation and removal of grounding wires for transmission lines still mainly rely on traditional manual tower climbing operations. Workers must wear protective suits, carry heavy grounding wires, and climb the tower. After reaching the crossarm of the tower, they complete the connection of the three-phase conductors one by one. This operation is time-consuming, labor-intensive, and requires high physical strength and skills from the workers. At the same time, the entire process faces significant safety hazards such as falls from heights and electric shock from close-range induced current.

[0003] To avoid the safety hazards associated with manually installing grounding wires, drones equipped with grounding devices have been used in recent years for power transmission line maintenance. This eliminates the need for manual tower climbing, avoids the core risks of high-altitude operations, simplifies the grounding operation process, and improves the ease of operation for a single unit. However, existing drone-mounted grounding wire installation and removal devices suffer from poor adaptability and insufficient connection reliability. They cannot simultaneously complete the grounding installation of three-phase conductors, resulting in limited improvement in work efficiency. Furthermore, they lack clamping status detection functions, making them prone to excessive contact resistance due to oxidation of the contact surface and insecure clamping, which fails to meet the electrical safety requirements for high-voltage line grounding and poses a safety risk of grounding failure. Summary of the Invention

[0004] To address the technical problem that existing UAV-mounted grounding wire hanging and removing devices cannot simultaneously complete the grounding installation of three-phase conductors, this invention provides an overhead line grounding wire hanging and removing device and method that can simultaneously complete the three-phase grounding installation, thereby improving the efficiency of power transmission line maintenance operations.

[0005] This invention is achieved through the following technical solution:

[0006] In a first aspect, the present invention provides an overhead line grounding wire attachment / removal device, comprising: a connecting base capable of being connected to the main body of a drone; a central clamping mechanism mounted on the connecting base capable of clamping a central transmission conductor; a lateral clamping mechanism mounted on the connecting base capable of rotating vertically relative to the connecting base, adapted to a lateral conductor clamping mechanism capable of clamping a lateral transmission conductor; and a grounding wire clamping mechanism mounted on the connecting base capable of clamping a grounding conductor and electrically connected to the central clamping mechanism.

[0007] In an optional embodiment of this application, the central clamping mechanism includes: a central clamping seat with a clamping groove, the side wall of which has an opening for the transmission wire to pass through; a central clamping block adapted to the clamping groove and capable of moving along the height direction of the clamping groove; and a first linear drive assembly connected to the central clamping block for driving the central clamping block to move along the height direction of the clamping groove.

[0008] In an optional embodiment of this application, the central clamping mechanism further includes: a limiting frame, the middle of which is hinged to the opening sidewall of the clamping groove, the lower end of which is suspended from the sidewall opening of the clamping groove, and the upper end of which is provided with a cleaning brush; a first return spring, which is pulsatorically connected to the limiting frame and stores energy when the lower end of the limiting frame rotates toward the clamping groove; and a monitoring camera, which is installed on one side of the clamping groove and is capable of acquiring positional image information of the central clamping block; wherein the monitoring camera is located on the moving path of the cleaning brush.

[0009] In an optional embodiment of this application, the structure of the lateral wire clamping mechanism is the same as that of the central clamping mechanism.

[0010] In an optional embodiment of this application, the lateral clamping mechanism includes: an unfolding drive assembly mounted on the connecting seat; and a lateral hook rod, one end of which is connected to the unfolding drive assembly in a transmission manner; wherein, the lateral wire clamping mechanism is mounted on the other end of the lateral hook rod, and two lateral hook rods are provided, with the two lateral hook rods respectively disposed on both sides of the unfolding drive assembly, and under the drive of the unfolding drive assembly, the two lateral hook rods can rotate synchronously upward or downward.

[0011] In an optional embodiment of this application, the unfolding drive assembly includes: an unfolding drive motor mounted on the central clamping seat and adapted to an unfolding drive gear; and two unfolding driven gears mounted on the central clamping seat, capable of rotating along their own axis, which mesh with the unfolding drive gear and are fixedly connected to the lateral hook rod; wherein the two unfolding driven gears are respectively located on both sides of the unfolding drive gear.

[0012] In an optional embodiment of this application, the grounding wire clamping mechanism is rotatably connected to the unfolding drive gear.

[0013] In an optional embodiment of this application, the unfolding drive gear is a bevel gear; the grounding wire clamping mechanism includes: a first guide wheel, mounted on the central clamping seat and located above the unfolding drive gear; two sliding frames, mounted on the central clamping seat and capable of sliding along their own axis, respectively disposed on opposite sides above the unfolding drive gear; a second guide wheel, mounted on the sliding frame; a second return spring, pulsatorically connected to the sliding frame and storing energy when the sliding frame moves away from the unfolding drive gear; and an opening drive cam, mounted on the rotation shaft of the unfolding drive gear and located between the two sliding frames; wherein, by rotating the opening drive cam, the two sliding frames can be driven to move away from each other, the first guide wheel and the second guide wheel are used to lay the grounding wire, and when the two sliding frames are close together, the grounding wire can be clamped by the cooperation of the two second guide wheels and the first guide wheel.

[0014] In an optional embodiment of this application, the lateral hook rod is an electrically telescopic rod.

[0015] Secondly, this application provides a method for installing grounding wires for overhead lines, based on the aforementioned overhead line grounding wire installation and removal device, comprising the following steps:

[0016] S10. Connect the overhead line grounding wire hanging and detaching device to the main body of the UAV, and connect the grounding wire clamping mechanism to the grounding wire.

[0017] S20. The central clamping mechanism is attached to the central power transmission line by the main body of the drone, and the central power transmission line is clamped by the central clamping mechanism.

[0018] S30, sequentially drive the lateral clamping mechanism to clamp the lateral transmission conductor, and drive the grounding wire clamping mechanism to clamp the grounding conductor.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] 1. The overhead line grounding wire hanging and removing device provided by the present invention includes a connecting seat, a central clamping mechanism, and a lateral clamping mechanism. The central clamping mechanism is installed on the connecting seat and can clamp the central transmission conductor. The lateral clamping mechanism is installed on the connecting seat and can rotate up and down relative to the connecting seat. It is adapted to a lateral conductor clamping mechanism, which can clamp the lateral transmission conductor. The grounding wire clamping mechanism is installed on the connecting seat and can clamp the grounding conductor. It is electrically connected to the central clamping mechanism. In use, it is connected to the main body of a drone through the connecting seat. The main body of the drone lifts the central clamping mechanism to the central transmission conductor. Then, the central clamping mechanism clamps the central transmission conductor, and the lateral conductor clamping mechanism clamps the lateral transmission conductor, so as to automatically realize the electrical connection between the grounding conductor and the central and lateral transmission conductors. It can simultaneously complete the three-phase grounding installation, thereby improving the efficiency of transmission line maintenance.

[0021] 2. The overhead line grounding wire installation method provided by the present invention uses a drone to lift the central clamping mechanism to the central transmission conductor. Then, the central clamping mechanism clamps the central transmission conductor, and the lateral conductor clamping mechanism clamps the lateral transmission conductor, so as to automatically realize the electrical connection between the grounding conductor and the central and lateral transmission conductors. It can simultaneously complete the three-phase grounding installation, thereby improving the efficiency of transmission line maintenance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] In the attached diagram:

[0024] Figure 1 A three-dimensional structural diagram of the overhead line grounding wire hanging and unhanging device provided in an embodiment of the present invention in its retracted state;

[0025] Figure 2 A three-dimensional structural schematic diagram of a drone hoisting assembly adapted to an overhead line grounding wire hanging and removing device provided in an embodiment of the present invention;

[0026] Figure 3 A three-dimensional structural diagram of the middle clamping mechanism after laterally replicating the limiting frame and the middle clamping block provided in an embodiment of the present invention;

[0027] Figure 4 for Figure 3 A magnified structural diagram of part A;

[0028] Figure 5This is a three-dimensional structural diagram of the limiting frame provided in an embodiment of the present invention;

[0029] Figure 6 A three-dimensional structural diagram of the lateral clamping mechanism provided in an embodiment of the present invention after it has been unfolded.

[0030] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of part B;

[0031] Figure 8 This is a three-dimensional structural diagram of the combination of the lateral clamping mechanism and the grounding wire clamping mechanism provided in an embodiment of the present invention;

[0032] Figure 9 This is a partial structural diagram of the combination of the lateral clamping mechanism and the grounding wire clamping mechanism provided in an embodiment of the present invention;

[0033] Figure 10 for Figure 9 A schematic diagram of the C-section structure;

[0034] Figure 11 This is a schematic diagram of the structure of the grounding wire clamping mechanism after clamping the grounding guide provided in an embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the structure of the overhead line grounding wire hanging and removing device provided in an embodiment of the present invention after clamping the middle transmission conductor;

[0036] Figure 13 This is a schematic diagram of the structure of the overhead line grounding wire hanging and removing device provided in an embodiment of the present invention after clamping the lateral transmission conductor.

[0037] The attached figures include reference numerals and their corresponding component names:

[0038] 1-Connecting seat, 2-Loop, 3-Lifting rod, 4-UAV body, 5-Central clamping mechanism, 510-Central clamping seat, 501-First support rod, 502-Limiting frame, 503-First return spring, 504-Cleaning brush, 505-Protective cover, 506-Monitoring camera, 507-Central clamping block, 508-Clamping drive gear, 509-Clamping screw, 6-First guide wheel, 7-Side clamping mechanism, 701-Expansion drive motor, 702-Expansion drive gear, 703-Second support rod, 704-Expansion driven gear, 705-Side hanging rod, 706-Limiting component, 8-Grounding wire clamping mechanism, 801-Support plate, 802-Sliding frame, 803-Second guide wheel, 804-Second return spring, 805-Trigger block, 806-Opening drive cam. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] In the description of the embodiments of this application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0043] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] Example 1

[0045] Combination Figure 1This embodiment provides an overhead line grounding wire attachment / removal device, including: a connecting base 1, which can be connected to the main body 4 of a drone; a central clamping mechanism 5, which is installed on the connecting base 1 and can clamp the central transmission conductor; a lateral clamping mechanism 7, which is installed on the connecting base 1 and can rotate up and down relative to the connecting base 1, and is adapted to a lateral conductor clamping mechanism, which can clamp the lateral transmission conductor; and a grounding wire clamping mechanism 8, which is installed on the connecting base 1 and can clamp the grounding conductor, and is electrically connected to the central clamping mechanism 5.

[0046] Combination Figure 2 and Figure 12 To facilitate the connection of the connecting seat 1 to the drone body 4, the top of the connecting seat 1 is fitted with a collar 2, and the collar 2 is fitted with a lifting rod 3. The top of the lifting rod 3 can be hinged to the pod at the bottom of the drone body 4. The collar 2 can be hung on the hook at the bottom of the lifting rod 3 to realize the connection between the connecting seat 1 and the drone body 4, and the connecting seat 1 can swing within a certain range relative to the drone body 4.

[0047] Combination Figure 3 The central clamping mechanism 5 includes: a central clamping seat 510, which is provided with a clamping groove, and the side wall of the clamping groove is provided with an opening for the transmission wire to pass through; a central clamping block 507, which is adapted to the clamping groove and can move along the height direction of the clamping groove; and a first linear drive assembly, which is connected to the central clamping block 507 for driving the central clamping block 507 to move along the height direction of the clamping groove.

[0048] Combination Figure 4 and Figure 5 The central clamping mechanism 5 further includes: a limiting frame 502, which is hinged to the opening side wall of the clamping groove in the middle, with its lower end suspended from the side wall opening of the clamping groove and a cleaning brush 504 provided at its upper end; a first return spring 503, which is pulsatorically connected to the limiting frame 502 and stores energy when the lower end of the limiting frame 502 rotates toward the clamping groove; and a monitoring camera 506, which is installed on one side of the clamping groove and can acquire positional image information of the central clamping block 507; wherein the monitoring camera 506 is located on the moving path of the cleaning brush 504.

[0049] Specifically, the central clamping mechanism 5 includes a first support rod 501, a limiting frame 502, and a first return spring 503. The first support rod 501 is rotatably connected inside the central clamping seat 510, and the limiting frame 502 is fixed outside the first support rod 501 so that the limiting frame 502 can rotate around the axis of the first support rod 501. The first return spring 503 is a torsion spring and is sleeved outside the first support rod 501. One end of the first return spring 503 is fixedly connected to the first support rod 501 (or can directly abut against it), and the other end of the first return spring 503 is fixedly connected to the central clamping seat 510 (or can directly abut against it). In this embodiment, two sets of first return springs 503 are provided, and the first return springs 503 are symmetrically distributed about the central axis of the first support rod 501 so that the first return springs 503 can drive the limiting frame 502 to return to its original position. A cleaning brush 504 is fixed to one end of the limiting frame 502, and a protective cover 505 is fixed to the other end of the limiting frame 502. A monitoring camera 506 is fixed to one side of the central clamping seat 510, and a central clamping block 507 is slidably connected inside the central clamping seat 510. A clamping drive gear 508 is installed inside the central clamping seat 510, and the clamping drive gear 508 is adapted to a clamping drive motor. A clamping screw 509 is fixed to the drive end of the clamping drive gear 508. At the same time, a cleaning brush 504 and a protective cover 505 are provided on the limiting frame 502. Two sets of protective covers 505 are provided, and the protective covers 505 are symmetrically distributed about the central axis of the limiting frame 502. The central clamping block 507 and the clamping screw 509 are threadedly connected.

[0050] Therefore, by activating the main body 4 of the drone, the entire device is lifted, aligning the slot of the central clamping seat 510 with the middle high-voltage line (the central transmission conductor) of the three sets of high-voltage lines, and then placing the entire device on the high-voltage line. The high-voltage line squeezes the limiting frame 502, which rotates around the central axis of the first support rod 501 and enters the clamping slot of the central clamping seat 510. This causes the extended end of the limiting frame 502 to block the opening of the connecting seat 1. At this time, the clamping drive gear 508 is activated, driving the clamping screw 509 to rotate, which in turn causes the central clamping block 507 to move upward, squeezing the high-voltage line and clamping it. While the limiting frame 502 rotates, the cleaning brush 504 fixed inside it sweeps across the surface of the monitoring camera 506, cleaning the surface of the monitoring camera 506. After clamping is completed, the clamping surface is observed through the monitoring camera 506 to check if it is secure. When not clamped, the protective cover 505 covers the outside of the monitoring camera 506 to protect it.

[0051] Combination Figure 6The lateral clamping mechanism 7 includes: an unfolding drive assembly mounted on the connecting seat 1; and a lateral hook rod 705, one end of which is connected to the unfolding drive assembly. The lateral wire clamping mechanism is mounted on the other end of the lateral hook rod 705, and there are two lateral hook rods 705. The two lateral hook rods 705 are respectively located on both sides of the unfolding drive assembly. Under the drive of the unfolding drive assembly, the two lateral hook rods 705 can rotate synchronously upward or downward.

[0052] Combination Figure 7 The deployment drive assembly includes: a deployment drive motor 701, mounted on the central clamping seat 510 and adapted to a deployment drive gear 702; and two deployment driven gears 704, mounted on the central clamping seat 510, capable of rotating along their own axis, meshing with the deployment drive gears 702, and fixedly connected to the lateral hook rod 705; wherein the two deployment driven gears 704 are respectively located on both sides of the deployment drive gear 702. It should be noted that the structure of the lateral wire clamping mechanism is the same as the structure of the central clamping mechanism 5.

[0053] It is understood that the unfolding drive motor 701 is fixed inside the bottom of the middle clamping seat 510, the unfolding drive gear 702 is fixed to the drive end of the unfolding drive motor 701, the lateral hook rod 705 is connected to the unfolding driven gear 704 through the second support rod 703, the second support rod 703 is rotatably connected inside the middle clamping seat 510, one end is fixedly connected to the unfolding driven gear 704, and the other end is fixedly connected to the lateral hook rod 705, the extension end of the lateral hook rod 705 is fixed with a limit member 706, two sets of second support rods 703 are provided, and the two second support rods 703 are symmetrically distributed about the central axis of the middle clamping seat 510, and the unfolding drive gear 702 and the unfolding driven gear 704 mesh. Driven by the deployment drive motor 701, the deployment drive gear 702 rotates. The rotation of the deployment drive gear 702 drives the two sets of second support rods 703 and the deployment driven gear 704 to rotate in opposite directions, thereby causing the two sets of lateral hanging rods 705 and the limiting member 706 to rotate from bottom to top into the high voltage lines at the left and right ends (two lateral transmission lines). The lateral conductor clamping mechanism is equipped with the same mechanism as the central clamping mechanism 5. At the same time, the lateral hanging rod 705 is an electric telescopic rod that can be extended and retracted to adapt to three-phase high voltage lines of different distances.

[0054] Combination Figure 8 The grounding wire clamping mechanism 8 is rotatably connected to the unfolding drive gear 702.

[0055] Combination Figure 9 and Figure 10The unfolding drive gear 702 is a bevel gear; the grounding wire clamping mechanism 8 includes: a first guide wheel 6, mounted on the central clamping seat 510, located above the unfolding drive gear 702; a sliding frame 802, mounted on the central clamping seat 510, capable of sliding along its own axis, two of which are provided, respectively located on opposite sides above the unfolding drive gear 702; a second guide wheel 803, mounted on the sliding frame 802; and a second return spring 804, pulsatorically connected to the sliding frame 802, which, when the sliding frame 802 moves away from the center... Energy is stored when the unfolding drive gear 702 moves in a certain direction; the opening drive cam 806 is mounted on the rotation shaft of the unfolding drive gear 702 and is located between the two sliding frames 802; wherein, by rotating the opening drive cam 806, the two sliding frames 802 can be driven to move away from each other; the first guide wheel 6 and the second guide wheel 803 are used to lay the grounding wire, and when the two sliding frames 802 are close together, the grounding wire can be clamped by the cooperation of the two second guide wheels 803 and the first guide wheel 6.

[0056] Specifically, the grounding wire clamping mechanism 8 includes a support plate 801, a sliding frame 802, and a second guide wheel 803. The support plate 801 is fixed inside the central clamping seat 510. Two sets of support plates 801 are provided, and the support plates 801 are symmetrically distributed about the central axis of the connecting seat 1. The sliding frame 802 is slidably connected inside the support plate 801. The second guide wheel 803 is rotatably connected to one end of the sliding frame 802. A second return spring 804 is adapted to one end of the sliding frame 802. At the same time, a trigger block 805 is fixed to one end of the sliding frame 802. An opening drive cam 806 is fixed to the top of the unfolding drive gear 702. Correspondingly, one end of the trigger block 805 has an arc surface adapted to the opening drive cam 806. Three sets of first guide wheels 6 are provided. Figure 11 ).

[0057] Based on this, by rotating the drive gear 702, the opening drive cam 806 can be driven to rotate simultaneously. After the opening drive cam 806 rotates, the trigger block 805 is not squeezed. At this time, the restoring force of the second reset spring 804 pulls the two sets of sliding frames 802 and the second guide wheel 803 inward. At this time, the grounding wire is guided by the three sets of first guide wheels 6 and the two sets of second guide wheels 803. Thus, the grounding wire is in a slack state before the limit is completed, and the grounding wire is in a multi-guide wheel pressed state after the limit of the three sets of high voltage lines is completed.

[0058] It should be understood that, through the cooperation of the first support rod 501, the limiting frame 502, the first return spring 503, and other structures, this embodiment can achieve automatic locking and clamping of the middle phase high voltage line and visual detection of the clamping status, solving the technical problems of easy loosening after the existing device is attached and the lack of a clamping status verification mechanism. When the device is placed on the middle phase high voltage line (the middle transmission conductor), the high voltage line squeezes the limiting frame 502 to rotate around the first support rod 501, the first return spring 503 provides a reset torque to automatically close the opening of the connecting seat 1, the cleaning brush 504 moves with the limiting frame 502 to synchronously clean the surface of the monitoring camera 506, the protective cover 505 forms a closed protection for the detection component in the non-operational state, and the clamping drive gear 508 drives the clamping screw 509 to drive the middle clamping block 507 to complete the rigid clamping and fixing of the middle phase high voltage line, which can improve the reliability of the attachment structure, ensure the accuracy of clamping status detection, and extend the service life of the detection element.

[0059] Through the cooperation of structures such as the deployment drive motor 701, deployment drive gear 702, and second support rod 703, the deployment drive motor 701 drives the deployment drive gear 702 to rotate. Through the meshing transmission with the deployment driven gear 704, the two sets of second support rods 703 rotate synchronously in opposite directions. The lateral hanging rod 705 drives the limiting member 706 to complete the hanging and limiting of the high-voltage lines on both sides. The telescopic structure is adapted to three-phase high-voltage transmission lines with different line spacings. This embodiment can realize the synchronous grounding and hanging of three-phase high-voltage lines and the adaptive adaptation of lines with different line spacings, solving the technical problems of existing devices being unable to synchronously complete the hanging of three-phase high-voltage lines and poor line specification adaptability.

[0060] Meanwhile, through the cooperation of structures such as the support plate 801, the sliding frame 802, and the second guide wheel 803, this embodiment can realize automatic tensioning of the grounding wire and anti-pull protection during the hanging process, solving the technical problems of the grounding wire being easy to loosen and the hanging process being easily affected by pulling, thus affecting the hanging accuracy.

[0061] In summary, the overhead line grounding wire hanging and removing device provided in this embodiment can use the main body of the drone to lift the central clamping mechanism 5 to the central transmission conductor, clamp the central transmission conductor through the central clamping mechanism 5, and clamp the lateral transmission conductor through the lateral conductor clamping mechanism, so as to automatically realize the electrical connection between the grounding conductor and the central and lateral transmission conductors, and can simultaneously complete the three-phase grounding installation, thereby improving the efficiency of transmission line maintenance operations.

[0062] Example 2

[0063] Combination Figure 12 and Figure 13 This embodiment provides a method for installing grounding wires for overhead lines, based on the overhead line grounding wire installation and removal device described in Embodiment 1, including the following steps:

[0064] S10. Connect the overhead line grounding wire hanging and unhanging device to the UAV body 4, and connect the grounding wire clamping mechanism 8 to the grounding wire.

[0065] Specifically, before operating the overhead line grounding wire hanging and removing device provided in Example 1, the assembly accuracy of each component is checked to confirm that the transmission components of the central clamping mechanism 5, the lateral clamping mechanism 7, and the grounding wire clamping mechanism 8 move smoothly without jamming, the communication connection between the UAV body 4 and the ground control terminal is stable, and the insulation performance of the electrical components meets the safety requirements for high-voltage operations.

[0066] After verification, the device is pre-installed on the ground. The lifting rod 3 is fitted inside the collar 2, and the lifting rod 3 is hinged and fixed to the UAV body 4. The grounding wire is sequentially threaded into the grooves of the three sets of first guide wheels 6 to complete the pre-layout of the grounding wire. The two sets of lateral hanging rods 705 are controlled to be in the retracted state, and the two sets of second support rods 703 are in the closed and merged state (e.g., Figure 1 (As shown), the initial state setting of the device is completed.

[0067] S20. The central clamping mechanism 5 is hung on the central power transmission line by the main body of the drone 4, and the central power transmission line is clamped by the central clamping mechanism 5.

[0068] Specifically, the main body of the drone 4 is started, and the drone body 4 is controlled by the ground control terminal to lift the entire device and fly to the area of ​​the three-phase high-voltage line to be operated. Then, the flight attitude of the drone body 4 is adjusted so that the slot of the middle clamping seat 510 is aligned with the middle phase high-voltage line of the three-phase high-voltage line. The drone body 4 is controlled to descend and the middle clamping seat 510 is placed on the middle phase high-voltage line.

[0069] During the process of the middle phase high voltage line entering the slot of the middle clamping seat 510, it abuts against the upper end of the limit frame 502. Figure 4 and Figure 5 The right end of the limiting frame 502 rotates around the first support rod 501, and the first return spring 503 deforms with the rotation. The extended end (lower end) of the limiting frame 502 rotates to the opening of the slot in the connecting seat 1, forming an opening blocking structure. During the rotation of the limiting frame 502, the cleaning brush 504 at its end simultaneously sweeps across the surface of the monitoring camera 506 to complete the cleaning of the detection surface. In the non-operational state, the protective cover 505 protects the monitoring camera 506. The clamping drive gear 508 is activated, which drives the clamping screw 509 to rotate. Through the threaded transmission, the middle clamping block 507 slides upward along the inside of the connecting seat 1. The middle clamping block 507 cooperates with the inner wall of the connecting seat 1 to complete the rigid clamping and fixing of the middle phase high voltage line. The clamping status is verified by the monitoring camera 506.

[0070] S30, sequentially drive the lateral clamping mechanism 7 to clamp the lateral transmission conductor, and drive the grounding wire clamping mechanism 8 to clamp the grounding conductor.

[0071] Specifically, after the middle phase high voltage line is clamped and fixed, the unfolding drive motor 701 is started. The unfolding drive motor 701 drives the unfolding drive gear 702 to rotate. Through the meshing transmission between the unfolding drive gear 702 and the unfolding driven gear 704, the two sets of second support rods 703 are driven to rotate synchronously in opposite directions. This causes the two sets of lateral hanging rods 705 and the limiting member 706 to rotate from bottom to top to the corresponding positions of the high voltage lines on the left and right sides. According to the line spacing of the three-phase high voltage lines, the extension length of the lateral hanging rods 705 is adjusted. The position is calibrated in conjunction with the retractable monitoring camera 506, so that the limiting member 706 completes the hanging limit of the high voltage lines on both sides. The lateral wire clamping machine at the end of the limiting member 706 completes the clamping and fixing of the high voltage lines on both sides, realizing the synchronous grounding of the three-phase high voltage lines.

[0072] As the unfolding drive gear 702 rotates, it drives the opening drive cam 806 at its top to rotate synchronously. The opening drive cam 806 rotates to a position where it disengages from the trigger block 805, releasing the compression limit on the trigger block 805. The restoring force of the second reset spring 804 drives the sliding frame 802 to slide towards each other along the support plate 801, causing the second guide wheel 803 to move towards the first guide wheel 6, thus forming a multi-guide wheel pressing structure in cooperation with the three sets of first guide wheels 6. Figure 11 The pre-laid grounding conductor is switched from a relaxed state to a tensioned state to complete the grounding circuit connection setup.

[0073] After the line maintenance is completed, the grounding wire removal operation is performed. The control of the unfolding drive motor 701 is reversed, which drives the two sets of second support rods 703 to rotate in the opposite direction and retract, releasing the hanging limit of the high voltage lines on both sides. At the same time, the drive cam 806 is opened and rotated in the opposite direction to squeeze the trigger block 805, which drives the sliding frame 802 and the second guide wheel 803 to reset, and the grounding wire returns to a relaxed state. The drive clamping drive gear 508 is driven to rotate in the opposite direction, which drives the middle clamping block 507 to slide downward to release the clamping of the middle phase high voltage line. The control of the UAV body 4 is raised so that the connecting seat 1 is separated from the middle phase high voltage line, completing the removal and recovery of the device.

[0074] In summary, the overhead line grounding wire installation method provided in this embodiment can automatically realize the electrical connection between the grounding conductor and the central transmission conductor and the lateral transmission conductor, and can simultaneously complete the three-phase grounding installation, thereby improving the efficiency of transmission line maintenance operations.

[0075] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for attaching and detaching grounding wires for overhead lines, characterized in that, include: The connector (1) can be connected to the main body (4) of the drone; A central clamping mechanism (5) is installed on the connecting seat (1) and is capable of clamping the central transmission line. It includes a central clamping seat (510), a central clamping block (507), and a first linear drive assembly. The central clamping seat (510) is provided with a clamping groove, and the side wall of the clamping groove is provided with an opening for the transmission line to pass through. The central clamping block (507) is adapted to the clamping groove and can move along the height direction of the clamping groove. The first linear drive assembly is connected to the central clamping block (507) and is used to drive the central clamping block (507) to move along the height direction of the clamping groove. A lateral clamping mechanism (7) is installed on the connecting seat (1) and can rotate up and down relative to the connecting seat (1). It is adapted to a lateral wire clamping mechanism, which can clamp lateral power transmission wires. The lateral clamping mechanism (7) includes an unfolding drive assembly and a lateral hook rod (705). The unfolding drive assembly is installed on the connecting seat (1). One end of the lateral hook rod (705) is connected to the unfolding drive assembly. The lateral wire clamping mechanism is installed on the other end of the lateral hook rod (705). There are two lateral hook rods (705). The two lateral hook rods (705) are respectively located on both sides of the unfolding drive assembly. Under the drive of the unfolding drive assembly, the two lateral hook rods (705) can rotate up or down synchronously. The grounding wire clamping mechanism (8) is installed on the connecting seat (1), and can clamp the grounding wire and is electrically connected to the middle clamping mechanism (5); The unfolding drive assembly includes an unfolding drive motor (701) and an unfolding driven gear (704). The unfolding drive motor (701) is mounted on the central clamping seat (510) and adapted to the unfolding drive gear (702). The unfolding driven gear (704) is mounted on the central clamping seat (510), is rotatable along its own axis, is provided in two, meshes with the unfolding drive gear (702), and is fixedly connected to the lateral hook rod (705). The two unfolding driven gears (704) are respectively located on both sides of the unfolding drive gear (702). The grounding wire clamping mechanism (8) is rotatably connected to the unfolding drive gear (702), the unfolding drive gear (702) is a bevel gear, and the grounding wire clamping mechanism (8) includes: The first guide wheel (6) is mounted on the central clamping seat (510) and located above the unfolding drive gear (702); The sliding frame (802) is mounted on the central clamping seat (510) and can slide along its own axis. There are two of them, which are respectively located on opposite sides above the unfolding drive gear (702). The second guide wheel (803) is mounted on the sliding frame (802); The second return spring (804) is connected to the sliding frame (802) and stores energy when the sliding frame (802) moves away from the unfolding drive gear (702); The opening drive cam (806) is mounted on the rotating shaft of the unfolding drive gear (702) and located between the two sliding frames (802); The rotation of the opening drive cam (806) can drive the two sliding frames (802) to move away from each other. The first guide wheel (6) and the second guide wheel (803) are used to lay the grounding wire. When the two sliding frames (802) are close to each other, the grounding wire can be clamped by the cooperation of the two second guide wheels (803) and the first guide wheel (6).

2. The overhead line grounding wire hanging and removing device according to claim 1, characterized in that, The central clamping mechanism (5) also includes: The limiting frame (502) is hinged to the opening side wall of the clamping groove in the middle, the lower end is suspended from the opening of the side wall of the clamping groove, and the upper end is provided with a cleaning brush (504). The first return spring (503) is connected to the limiting frame (502) in a transmission manner, and stores energy when the lower end of the limiting frame (502) rotates toward the clamping groove; A monitoring camera (506) is installed on one side of the clamping slot and is able to acquire position image information of the central clamping block (507); The monitoring camera (506) is located on the moving path of the cleaning brush (504).

3. The overhead line grounding wire hanging and removing device according to claim 2, characterized in that, The structure of the lateral wire clamping mechanism is the same as that of the central clamping mechanism (5).

4. The overhead line grounding wire hanging and removing device according to claim 1, characterized in that, The lateral hook rod (705) is an electric telescopic rod.

5. A method for installing grounding wires on overhead power lines, characterized in that, The overhead line grounding wire hanging and removing device according to any one of claims 1 to 4 includes the following steps: S10. Connect the overhead line grounding wire hanging and unhanging device to the UAV body (4) and connect the grounding wire clamping mechanism (8) to the grounding wire. S20. The central clamping mechanism (5) is hung on the central power transmission line by the main body of the drone (4), and the central power transmission line is clamped by the central clamping mechanism (5). S30, drive the lateral clamping mechanism (7) to clamp the lateral transmission conductor, and drive the grounding wire clamping mechanism (8) to clamp the grounding conductor.

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